weight



ftait@ tens utwt @frn SILAS W. WRIGHT, OF ELLSWORTH, NEW YORK, ASSIGN OR TO HIMSELF AND S. J. WRIGHT, OF SAME PLACE.

Letters .Patent No. 62,462, dated February 26, 1867.

IMPROVED BOLT-CUTTING SHEARS.

lille .Sdgrbnl ruimt in in lgese tttcrt jattnt mit making nu nf tigt simu.

TO ALL WHOM IT MAY CONGERN:

Be it known thnt I, SILAS W. WRIGHT, of :Ellsworth` in the county of St. Lawrence, and State of New York, have invented :i new and useful improvement in Iron Shears; and I do hereby declare that the following is u full, clear, and cxnct description thereof, which will enable others skilled in the art to make and use the saine, reference being hud to the accompanying drawings, forming part of this speeiiication.

This invention rela-tes to a. method of cutting und turning the ends of bolts and rivets in bln'eksiniths und other iron or lnetullic Work; and it consists in attaching cutting-levers to n cross-piece, upon which they :ire allowed to turn, und whereby the cutting edges are given udrau'ingor rolling stroke, as will be described.

Figure 1 represents the shears ns complete; and

Figure 2 is un end View, showing the cross-piece und the cutting edges.

vSimilurletters oi' reference indicate like pnrts.

'A represents the cutting-levers. B is the cross-piece, to which the levers are attached, the point of attachment forming the centres of motion of' the levers. O represents the bolts or rivet-pins by which the levers are attached to thc crosspiece. The instrument is formed of suitable metal` the cutting portion of the levers et" course being steel, und shown in dotted lines. The crosspiece B is a. plain piece of metal, mede in any convenient form. The cutting-levers A' dreef suitable length and :1re attached to the cross-.piece by bolts or rivets in a. substantial manner, forming joints at the cutting ends. The cutting edges are so formed that, in cutting.J the edges have u. drawing or rolling motion like the edges or peripheries of two moving cams or eceentrics. The cutting edges :irc somewhat circular in form, but in the process of cutting the whole cutting edge of euch lever may operate.

This tool is particularly intended for cutting and trimming' the-ends of bolts and rivets, but it uiay be useful for many other similar purposes. I

The space inni-kerl d forms :t recess for receiving the end of" the bolt or rivet when the outer ends of the levers are extended. When these ends are brought together the cutting edges come in contact with each other like the cutting edges of two eccentrics, moving upon their centres and severing any intervening obstacle.

Having thus described my invention, what I claim as new, und desire to secure by Letters Patent, is

The cutting-levers A A und the cross-piece B, constructed, arranged, und combined substantially' es herein shown and described und for the purposes set forth.

SILAS W. WRIGHT. Witnesses:

J. B. ELLswoxrrH,

J. BARNES. 

